内胚葉組織分化の解析I. : 内胚葉組織の分化能

概要

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Endodermal epithelia isolated from avian embryos were either: (1) cultured organotypically in vitro in the absence of mesenchymal cells, (2) transplanted into the embryonic coelomic cavity or splanchnic mesodermal layer, or (3) cultured in combination with heterologous mesenchymal tissues on the chorio-allantoic membrane. The results obtained in the present study show that the endodermal pieces derived from presumptive digestive tract have autodifferentiation potency and can differentiate to some extent in the absence of mesenchymal tissues. The potency appears in the early stages of development of the endoderm and the areas from which each type of endodermal epithelia develops are rather strictly localized. The developmental fate of certain areas of the endoderm is barely changed even under the influence of heterologous mesenchyme.
社団法人日本動物学会の論文
1978-03-25